
temp = input("啊啊啊啊");
aaa = int(temp);
if(aaa==1):
    print("1");
else:
    print(aaa);
print('hello world');
flag = "true";
while(flag =="true"):
    print(aaa+1);
    if(aaa==4):
        print(aaa);
        flag = "false";
    else:
        aaa += 1;
        print(aaa);